1. HEAVY EQUIPMENT 2. CRAWLER DOZERS 3. 400 4. (420C) - CASE CRAWLER TRACTOR (S/N 3012301 & AFTER) (1/61-12/62) 5. (19) - BUCKETS Select section (19) - BUCKETS Case: (272) - BACKHOE BUCKETS (OPTIONAL EQUIPMENT), TRENCHING BUCKETS (MACHINERY ITEMS) sale parts diagram catalog online construction equipment excavator tractor Truck sale: